CVE-2026-56371
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedImageMagick before 7.1.2-15 and 6.9.13-40 contains a memory leak in coders/txt.c when processing TXT files with texture attributes: the texture object allocated via ReadImage is not released when GetTypeMetrics fails, leaking memory each time a crafted TXT file with a texture attribute is processed.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceImageMagick contains a memory leak in coders/txt.c where a texture object allocated via ReadImage is not properly released when GetTypeMetrics fails during TXT file processing with texture attributes. Each successful processing of a crafted TXT file with a texture attribute results in memory leakage, potentially leading to resource exhaustion.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 6.9.13-40>= 7.0.0-0, < 7.1.2-15CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check installed ImageMagick versionRun 'identify -version' or 'convert -version' to retrieve the version numberAffected if Version is less than 6.9.13-40, or is 7.0.0-0 through 7.1.2-14 (inclusive)
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Verify TXT coder availabilityRun 'identify -list configure' and look for 'DELEGATES' or 'CODERS' containing 'txt', or check if ImageMagick can identify a TXT file typeAffected if TXT coder support is enabled and ImageMagick version is in the affected range
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Confirm TXT file processing capabilityAttempt to process a basic TXT file with ImageMagick using 'convert input.txt output.png' or similar commandAffected if ImageMagick can process TXT files and version is affected
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Check for texture attribute processingInspect whether ImageMagick is configured to read or process TXT files that may contain texture attributes (search documentation for -texture or similar TXT texture options)Affected if TXT file processing with texture attributes is possible and version is in the affected range
A user is affected if their ImageMagick version falls within < 6.9.13-40 or >= 7.0.0-0 to < 7.1.2-15, and they process TXT files with texture attributes where GetTypeMetrics fails, causing memory accumulation.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped6.9.13-407.1.2-15
Upgrade ImageMagick to version 7.1.2-15/6.9.13-40 or later to obtain the patch that adds proper texture object cleanup in the error path of GetTypeMetrics.
ImageMagick 6.9.13-40 or later; ImageMagick 7.1.2-15 or later
- 1. Identify the current ImageMagick version installed on the system using 'convert --version' or 'magick --version'
- 2. For ImageMagick 6.x users: Upgrade to version 6.9.13-40 or later
- 3. For ImageMagick 7.x users: Upgrade to version 7.1.2-15 or later
- 4. Verify the upgrade was successful by checking the version again
- 5. Test that ImageMagick processes TXT files normally to confirm functionality
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-56371 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-56371 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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